Morphological and biological variations of the glass snake <i>Ophiodes striatus</i> (Spix, 1825) (Squamata, Anguidae) from southeastern Brazil

OLIVEIRA, PAOLA R. DE; SANTOS, JULIANE FLORIANO LOPES; SANTOS, JORGE ABDALA DERGAM DOS; SOUSA, BERNADETE M. DE

doi:10.1590/0001-3765202120190206

PAOLA R. DE OLIVEIRA

Programa de Pós-Graduação em Biodiversidade e Conservação da Natureza, Universidade Federal de Juiz de Fora, Campus Universitário, São Pedro, 36036-900 Juiz de Fora, MG, Brazil

Universidade Federal de Juiz de Fora, Laboratório de Herpetologia, Campus Universitário, São Pedro, 36036-900 Juiz de Fora, MG, Brazil

https://orcid.org/0000-0001-6725-7693

JULIANE FLORIANO LOPES SANTOS

Programa de Pós-Graduação em Biodiversidade e Conservação da Natureza, Universidade Federal de Juiz de Fora, Campus Universitário, São Pedro, 36036-900 Juiz de Fora, MG, Brazil

https://orcid.org/0000-0001-7481-3109

JORGE ABDALA DERGAM DOS SANTOS

Universidade Federal de Viçosa, Departamento de Biologia Animal, Centro de Ciências Biológicas e da Saúde, Campus Universitário, Centro, 36570-000 Viçosa, MG, Brazil

https://orcid.org/0000-0003-1395-1377

BERNADETE M. DE SOUSA

Programa de Pós-Graduação em Biodiversidade e Conservação da Natureza, Universidade Federal de Juiz de Fora, Campus Universitário, São Pedro, 36036-900 Juiz de Fora, MG, Brazil

Universidade Federal de Juiz de Fora, Laboratório de Herpetologia, Campus Universitário, São Pedro, 36036-900 Juiz de Fora, MG, Brazil

https://orcid.org/0000-0002-0815-7876

Correspondence to: Paola R. de Oliveira E-mail: paolarooliveira91@gmail.com

AUTHOR CONTRIBUTIONS

PRO, JADS and BMS conceived and designed the study; PRO conducted data collection and analysis; PRO and JFLS conducted the statistical analyses; all authors wrote, read and approved the final version of the manuscript.

Figures (4)
Tables (2)

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Figure 1
Relation of the morphometric variables measured in Ophiodes striatus belonging to the Coleção Herpetológica da Universidade Federal de Juiz de Fora - Reptiles (CHUFJF-Reptiles).

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Figure 2
Graph of Principal Component Analysis (PCA) showing the variation of the snout-vent length (SVL), tail length (TL) and length of the vestigial hind limbs (LVL) (a, n = 50) and distance between the nostrils (DN), face commissure (FC), head height (HH) and head width (HW) (b, n = 45) (morphometric variables signaled by the brown arrow) in relation to sex (male in blue and female in pink) of Ophiodes striatus.

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Figure 3
Graph of Principal Component Analysis (PCA) showing the variation of the snout-vent length (SVL), tail length (TL) and length of the vestigial hind limbs (LVL) (morphometric variables indicated by the brown arrow) in relation to the population variation (Ritápolis specimens in blue and Juiz de Fora specimens in pink) from Ophiodes striatus (n = 27).

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Figure 4
Pearson’s Correlation between snout-vent length (SVL - x) and length of the vestigial hind limbs (LVL - y) of Ophiodes striatus (n = 50). Correlation (x, y) = 0.4587 (45.87%).

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Table I
Means calculated for the snout-vent length (SVL), tail length (TL), length of the vestigial hind limbs (LVL), distance between nostrils (DN), face commissure (FC), head height (HH) and head width (HW) of the females, males and offspring of Ophiodes striatus belonging to the Coleção Herpetológica da Universidade Federal de Juiz de Fora, Minas Gerais - Reptiles (CHUFJF-Reptiles).

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Table II
Means calculated for the snout-vent length (SVL), tail length (TL), length of the vestigial hind limbs (LVL) of the females and males specimens of Ophiodes striatus belonging to the Federal University of Juiz de Fora - Reptiles (CHUFJF-Reptiles) collected in previous studies in the municipalities of Juiz de Fora and Ritápolis - Minas Gerais, Brazil.

Variable* (mm) Sex	SVL	TL	LVL	DN	FC	HH	HW
Female	163.21 ±25.77	173.24 ±68.26	4.21 ±0.82	2.23 ±0.38	9.20 ±1.15	6.07 ±0.99	6.80 ±084
	M=217.21	M=269.24	M=6.28	M=2.82	M=11.54	M=8.00	M=8.57
	m=117.22	m=34.01	m=2.44	m=1.39	m=7.47	m=4.2	m=5.45
	(n=19)	(n=19)	(n=19)	(n=18)	(n=18)	(n=18)	(n=18)
Male	156.20 ±16.64	177.51 ±78.21	4.24 ±0.88	2.32 ±0.41	9.45 ±1.29	5.94 ±0.72	7.10 ±0.85
	M=197.17	M=309.51	M=6.37	M=3.45	M=12.9	M=7.45	M=9.16
	m=121.35	m=24.71	m=2.49	m=1.69	m=7.43	m=4.86	m=5.02
	(n=31)	(n=31)	(n=31)	(n=27)	(n=27)	(n=27)	(n=27)
Juveniles** (n=8)	53.14 ±4.65	66.30 ±9.10	1.54 ±0.27	1.39 ±0.19	5.53 ±0.16	2.70 ±0.17	3.52 ±0.20
	M=63.19	M=77.40	M=1.92	M=1.67	M=1.67	M=3.03	M=3.75
	m=47.24	m=46.68	m=1.25	m=1.1	m=5.26	m=2.5	m=3.14

Locality / Sex Variable (mm)	Juiz de Fora		Ritápolis
Locality / Sex Variable (mm)	Female (n=7)	Male (n=3)	Female (n=7)	Male (n=10)
SVL	160.64 ±22.57	136.74 ±9.72	169.70 ±18.27	154.88 ±15.83
	M=196.18	M=146.45	M=192.03	M=187.11
	m=129.47	m=127.01	m=138.91	m=139.5
TL	152.95 ±81.86	135.55 ±102.96	190.93 ±67.73	182.45 ±71.08
	M=238.97	M=246.02	M=269.24	M=293.67
	m=34.01	m=42.25	m=96.68	m=45.14
SVL	4.34 ±0.93	4.24 ±0.82	4.07 ±0.60	4.50 ±0.99
	M=6.28	M=4.12	M=4.94	M=6.37
	m=3.58	m=2.49	m=3.29	m=3.58

[1] Correspondence to: Paola R. de Oliveira E-mail: paolarooliveira91@gmail.com

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Morphological and biological variations of the glass snake Ophiodes striatus (Spix, 1825) (Squamata, Anguidae) from southeastern Brazil

Abstract